This paper is a discussion of Frege's maxim that it is only in the context of a sentence that a word has a meaning. Quine reads the maxim as saying that the sentence is the fundamental unit of significance. Dummett rejects this as a truism. But it is not a truism since it stands in opposition to a conception of meaning held by John Locke and others. The maxim denies that a word has a sense independently (...) of any sentence in which it occurs. Dummett says this denial is inconsistent with the fact that people understand sentences they have never heard before. The maxim is defended against this attack. (shrink)

"By looking at Frege's lectures on logic through the eyes of the young Carnap, this book casts new light on the history of logic and analytic philosophy. As two introductory essays by Gottfried Gabriel and by Erich H. Reck and Steve Awodey explain, Carnap's notes allow us to better understand Frege's deep influence on Carnap and analytic philosophy, as well as the broader philosophical matrix from which both continental and analytic styles of thought emerged in the 20th century."--BOOK (...) JACKET. (shrink)

If we consider Wittgenstein's career as a whole, it appears that he wrote more on the philosophy of logic and mathematics than any other subject. Yet his writings on these subjects have exerted little influence. Indeed, the tide of response to Remarks on the Foundations of Mathematics, which contains the bulk of his latest views of mathematics, has been for the most part overwhelmingly negative. Given his later emphasis on the context-bound character of language, mathematics and logic--where language apparently operates (...) in an maximally precise, clear and general way--represent two of the most difficult cases for Wittgenstein to confront. My thesis aims to defend Wittgenstein from the charges of benighted arrogance traditionally levelled against him. I argue that Wittgenstein's later discussions of mathematics form a central part of a larger philosophical project, internally related to Philosophical Investigations and shaping in specific ways Wittgenstein's reaction to both scepticism and accounts of the nature of logical and mathematical truth. I see Wittgenstein criticizing the unreflective use of mathematical tools in philosophy, not offering a competing philosophy of mathematics. ;Too few of Wittgenstein's readers have been willing to offer detailed exegesis of his writing . This has made it difficult to understand how the aphoristic style of his late writing bears on the philosophical problems being discussed. On my view, the quality of Wittgenstein's writing is intrinsic to his later conception of the nature of logic, mathematics and philosophy. Line by line engagement with his texts is thus imperative in order to achieve an understanding of his philosophical objectives and criticisms. My dissertation offers as a paradigm of such reading a detailed exegesis and criticism of the opening five sections of Remarks on the Foundations of Mathematics. ;I briefly explore in some detail the origin and genesis of Wittgenstein's interest in rule-following, from its roots in the Tractatus's conception of logical syntax. This background illuminates Wittgenstein's later conception of logical truth and his criticisms of Frege's and Russell's arguments for logicism. To explore these criticisms, I focus on Wittgenstein' s discussions of the Frege-Russell definition of "Number" in "logical" terms. Placed in their appropriate philosophical and historical context, Wittgenstein's seemingly outrageous remarks about the nature of proof, mathematical logic and the foundations of mathematics do not simply betray his ignorance. Nor do they commit him to a revisionist attitude toward mathematical practice. Rather, they raise fundamental questions about the philosophical presuppositions lying behind attempts to bring particular mathematical results to bear in philosophy. (shrink)

Recent discussions on Fregean and neo-Fregean foundations for arithmetic and real analysis pay much attention to what is called either ‘Application Constraint’ ($AC$) or ‘Frege Constraint’ ($FC$), the requirement that a mathematical theory be so outlined that it immediately allows explaining for its applicability. We distinguish between two constraints, which we, respectively, denote by the latter of these two names, by showing how$AC$generalizes Frege’s views while$FC$comes closer to his original conceptions. Different authors diverge on the interpretation of$FC$and on whether it (...) applies to definitions of both natural and real numbers. Our aim is to trace the origins of$FC$and to explore how different understandings of it can be faithful to Frege’s views about such definitions and to his foundational program. After rehearsing the essential elements of the relevant debate (§1), we appropriately distinguish$AC$from$FC$(§2). We discuss six rationales which may motivate the adoption of different instances of$AC$and$FC$(§3). We turn to the possible interpretations of$FC$(§4), and advance a Semantic$FC$(§4.1), arguing that while it suits Frege’s definition of natural numbers (4.1.1), it cannot reasonably be imposed on definitions of real numbers (§4.1.2), for reasons only partly similar to those offered by Crispin Wright (§4.1.3). We then rehearse a recent exchange between Bob Hale and Vadim Batitzky to shed light on Frege’s conception of real numbers and magnitudes (§4.2). We argue that an Architectonic version of$FC$is indeed faithful to Frege’s definition of real numbers, and compatible with his views on natural ones. Finally, we consider how attributing different instances of$FC$to Frege and appreciating the role of the Architectonic$FC$can provide a more perspicuous understanding of his foundational program, by questioning common pictures of his logicism (§5). (shrink)

It is Frege's third contribution that makes the point of departure for the present paper. Not merely did Frege show how to manipulate symbols more exactly; he also gave a searching account of what these symbols mean. Consider a philosophical problem that arises out of the simplest arithmetic. When we say that 5 = 2 + 3, what do we mean? Do we mean that 5 is identical with 2 + 3? But in some ways 5 and 2 + (...) 3 are obviously different. Or do we mean that 5 and 2 + 3 are equal but not identical, equality being a relation that falls short of complete identity? But in that case, some ordinary ways of speaking in mathematics must be false. Suppose a pupil is asked for the positive square root of 25. The phrasing of the question implies that there is one and only one. No doubt he may answer, '5'. But then it follows that the answer '2 + 3' is not allowable, since ex hypothesi 5 and 2 + 3, though equal, are not identical. Yet ordinarily the answer '2 + 3' would be regarded as strange but not as wrong. (shrink)

In this essay, we explore a fresh avenue into mind-body dualism by considering a seemingly distant question posed by Frege: "Why is it absurd to suppose that Julius Caesar is a number?". The essay falls into three main parts. In the first, through an exploration of Frege’s Julius Caesar problem, we attempt to expose two maxims applicable to the mind-body problem. In the second part, we draw on those maxims in arguing that “full blown dualism” is preferable to more modest, (...) property-theoretic, versions. Finally, in the third part we close by suggesting that full blown dualism need not be spooky, resurrecting a broadly Lockean, rather than Cartesian, metaphysical picture. (shrink)

Departing from the dominant theories of Frege, Russell and Mill, Kit Fine has sketched a novel solution to Frege’s puzzle in his book Semantic Relationism. In this article, I briefly discuss the puzzle in its various forms and the attempted solutions of Frege and Russell. I then explicate the essential features of the new theory and critically appraise the mechanism suggested by Fine to solve the puzzle. I show that Semantic Relationism fails to address the concerns raised in the puzzle.

In this article, we will revisit a motivation to consider the advantages of a theory about structured contents over a semantics of possible worlds. We will argue that a structure represents the strategic organization of the content of “p” under conditions in which asserting it does not imply contradictory consequences. These are the winning conditions for the assertion of ‘p’. When ‘p’ is modally sensitive – it can change its winning parameters – knowledge of the structure thus represents the rational (...) point for assertions (about non-actualized realities) that are organized to maximize what can be deduced from ‘p’. In these cases, the known relevant structure is intensional. We will argue that actualist Possible World Semantics, seeking the conversion of intensional knowledge into a de re representation of possible states, pays the price of being blind to structural divergences; it can only poorly explain these structural divergences between non-actual states of information and correlate it with divergence between winning strategies of assertion. Our argument will begin exposing Frege’s legacy; resort to Dummett’s concept of ingredient sense as an alternative to Kripke’s grade two knowledge; and briefly go through a semantic strategy of Stalnaker and Thomason to represent modal statements. In addition to these authors, we will explore the contribution of Russell, Kaplan and Ecthemendy to our argument. (shrink)

This is the 1991 (2nd) edition of the 1986 book (MIT Press), considered to be the classic defense of Millianism. The nature of the information content of declarative sentences is a central topic in the philosophy of language. The natural view that a sentence like "John loves Mary" contains information in which two individuals occur as constituents is termed the naive theory, and is one that has been abandoned by most contemporary scholars. This theory was refuted originally by philosopher Gottlob (...) Frege. His argument that the naive theory did not work is termed Frege's puzzle, and his rival account of information content is termed the orthodox theory. In this detailed study, Nathan Salmon defends a version of the naive theory and presents a proposal for its extension that provides a better picture of information content than the orthodox theory gives. He argues that a great deal of what has generally been taken for granted in the philosophy of language over the past few decades is either mistaken or unsupported, and consequently, much current research is focused on the wrong set of questions. Salmon dissolves Frege's puzzle as it is usually formulated and demonstrates how it can be reconstructed and strengthened to yield a more powerful objection to the naive theory. He then defends the naive theory against the new Frege puzzle by presenting an idea that yields both a surprisingly rich and powerful extension of the naive theory and a better picture of information content than that of the original orthodox theory. Nathan Salmon is Professor of Philosophy, University of California at Santa Barbara. (shrink)

Two topics are presently discussed. first, the distinction frege draws between two kinds of laws, natural and normative. secondly, we show how a remark made by frege with respect to different notions of truth is related to the analysis of meaning by family resemblances, as stressed later by wittgenstein. the historical dimension of family formation is discussed and references to 18th and 19th-century philosophers holding similar views are made. (edited).

(Translation of Frege's Grundgesetze II, §§ 86-137).

Number words seemingly function both as adjectives attributing cardinality properties to collections, as in Frege’s ‘Jupiter has four moons’, and as names referring to numbers, as in Frege’s ‘The number of Jupiter’s moons is four’. This leads to what Thomas Hofweber calls Frege’s Other Puzzle: How can number words function as modifiers and as singular terms if neither adjectives nor names can serve multiple semantic functions? Whereas most philosophers deny that one of these uses is genuine, we instead argue that (...) number words, like many related expressions, are polymorphic, having multiple uses whose meanings are systematically related via type shifting. (shrink)

Frege's linguistic views are exemplified by an analysis of the following topics: proper and common names, the definite and the indefinite article, the singular and plural distinction, words and sentences, together with the role of the copula, and the relationship of syntactical and semantical categories. His endeavour to overcome the ambiguities of natural language inherently connected with his logical investigations failed. In fact, his conceptions are relying on accidental features of a particular natural language, namely German. Therefore, they are (...) neither valid in general nor relevant from the logical point of view. They are influenced rather by his philosophical prejudices than by empirical results obtained in comparative philology and linguistics at all. (shrink)

"One of Frege's main semantic principles, is however, missing in Dummett's book, [Frege: philosophy of language] and it is has been ignored by most Frege scholars. That principle is the thesis concerning the ambiguity of the word 'is'. Angelelli come close to attending to it when he makes some remarks on identity and predication, and Matthias Schirn puts special emphasis on the role of the thesis in Frege's work. However, the great majority of Frege scholars have neglected the (...) ambiguity doctrine, even when they have commented on each of the allegedly different meanings of 'is' separately. This is strange in view of the fact that it was Frege and Russell who proposed the thesis and established it as one of the basic ingredients of modern logic. They have in fact been followed by most philosophers. For instance, in the Tractatus Ludwig Wittgenstein emphasizes the ambiguity of the verb 'to be' and stresses the.. (shrink)

Frege’s Caesar problem is best understood as a multidimensional problem that touches on semantical, epistemological as well as metaphysical issues. The aim of this paper is to shed light on a dimension that has been largely ignored in the literature. It is argued that Frege’s own presentation of the problem strongly suggests that the problem consists primarily in providing the concept of number with a ‘sharp delimitation’. The demand for the ‘completeness of definitions’ was already made by Frege in Grundlagen (...) and not just in his mature period, as is generally assumed. It derives from the Euclidean goal of Grundlagen to transform the arithmetic of his time into an ‘exact science’ in the proper sense. The metaphysical problem as well as the epistemological and the semantical problem that are involved in the Caesar problem only arise because the concept of number is not sharply delimited. The latter problem must therefore be regarded as the fundamental one. Moreover, it can be shown that Frege’s definition of number presupposes that all concepts of his system are sharply delimited. This explains why he considered the solution of the Caesar problem as an integral part of his logical foundation of arithmetic. (shrink)

Concerns a problem posed, but not solved, by Frege in part III of his Grundgesetze. As a preliminary to defining ‘real number’, Frege attempts to analyse the notion of a quantitative domain. He was unaware of the previous attempt of Otto Holder to do this; it is remarked how much weaker Frege's assumptions were in deriving theorems than Holder's. Frege deals with groups on which there is a right‐invariant semilinear ordering, although he does not use this terminology. He is (...) uncertain whether it can be deduced that the ordering is also left‐invariant, and proves as much as possible without invoking the assumption that it is. The independence proof, due to Dr Peter Neumann, establishes that it could not be deduced. (shrink)

Frege's logicist program requires that arithmetic be reduced to logic. Such a program has recently been revamped by the "neologicist" approach of Hale and Wright. Less attention has been given to Frege's extensionalist program, according to which arithmetic is to be reconstructed in terms of a theory of extensions of concepts. This paper deals just with such a theory. We present a system of second-order logic augmented with a predicate representing the fact that an object x is the (...) extension of a concept C, together with extra-logical axioms governing such a predicate, and show that arithmetic can be obtained in such a framework. As a philosophical payoff, we investigate the status of the so-called Hume's Principle and its connections to the root of the contradiction in Frege's system. (shrink)

One of the remarkable results of Frege’s Logicism is Frege’s Theorem, which holds that one can derive the main truths of Peano arithmetic from Hume’s Principle (HP) without using Frege’s Basic Law V. This result was rediscovered by the Neo-Fregeans and their allies. However, when applied in developing a more advanced theory of mathematics, their fundamental principles—the abstraction principles—incur some problems, e.g., that of inflation. This paper finds alternative paths for such inquiry in extensionalism and object theory.

This book is an attempt to give a completely extensional account of belief without recourse to entities such as propositions and the like. This is done by developing a semantical metalanguage and instead of alluding to such intensional elements as meanings, the talk is rather of individuals, virtual classes, and relations. A Quinean kind of paraphrastic program is used, making explicit time references and belief conditions, as well as the above objects of belief. They are all keyed to the user (...) of a specific language through Martin's use of testing and acceptance as primitive notions, giving the entire project a behavioristic flavor. These particular primitives have been chosen in view of the supposition that they have clear experimental meanings and that they are crucial to the logical analysis of experimental method. The upshot of Martin's approach is an analysis of belief in terms of their relational characteristics. Hence, on his view, we cannot properly speak of knowledge and belief, but only of knowing and believing. In the course of developing his logic of belief, Martin manages to touch upon a wide range of topics. Quine's notion of ontic commitment is expanded to include "ontic involvement"--a second order commitment involving the objects of Martin's metalanguage. Arguments are offered against the contemporary view that there are a multiplicity of logics: "One God, one country, one logic" being the professed underlying maxim of his book. There is a longish discussion marking out a distinction between facts and events, modeled after his account of belief. A brief chapter reassesses and defends Frege's notion of Sinn in terms of Martin's logical machinery. Interspersed throughout are commentaries on a number of figures, such as Russell and Carnap, Hintikka and von Wright. Included also is a chapter on human action based on a distinction between action types and action events. There, Davidson's analysis of action sentences is criticized in terms of the 'Fido'-Fido principle. The extensive use of symbols seems cumbersome, but is perhaps necessary given the nature of Martin's enterprise.--K. T. (shrink)

In Frege's Conception of Logic Patricia A. Blanchette explores the relationship between Gottlob Frege's understanding of conceptual analysis and his understanding of logic.

I argue that the act-based accounts of propositions, like the one defended by Soames, cannot be used to address Frege’s Puzzle without also giving up the Millian view of names. I begin by identifying two puzzles—both of which have been called Frege’s puzzle—and discuss the act-based theorist’s solution to the first puzzle. I then raise an objection against the solution and argue that it cannot be overcome unless a concession is made. Making the concession, however, would make it impossible for (...) the act-based theorist to solve the second puzzle. I further argue that any attempt to solve the puzzle while also maintaining a commitment to the Millian view will force such theoretical commitments on the act-based theorist which seriously undermine the scope and motivation of the act-based approaches. Thus, any solution to Frege’s puzzle on the act-based account is bound to conflict with the Millian view of names. (shrink)

In this article, I compare Gottlob Frege's and Bernard Bolzano's rationalist conceptions of arithmetic. Each philosopher worked out a complicated system of propositions, all of which were set forth as true. The axioms, or basic truths, make up the foundations of the subject of arithmetic. Each member of the system which is not an axiom is related (objectively) to the axioms at the base. Even though this relation to the base may not yet be scientifically proven, the propositions of (...) the system include all of the truths of the science of arithmetic. I conclude the article by analyzing the respective views of Frege and Bolzano in the light of Gödel's first incompleteness theorem. (shrink)

In this dissertation I explore Frege’s conception of truth. In particular I defend the thesis that Frege in his mature career takes truth to be an object, i.e., the True qua the reference of true sentences. In the literature on truth Frege has been usually taken to be a truth deflationist or a truth primitivist. Indeed Frege leaves a number of comments that sound like typical deflationist claims and his famous indefinability argument is the most discussed argument for primitivism. However, (...) Frege is neither a deflationist nor a primitivist. His deflationist remarks and the indefinability argument are rather his arguments that truth is an object. -/- For Frege judging—and its verbal counterpart asserting—is always acknowledging the truth of a truth-bearer. Thus, if truth is an object for him, his conception of judgment ought to also be adjusted accordingly. Indeed Frege shows how we can understand judgment qua acknowledgment of truth if truth is an object. Specifically, judging that p is identifying the True with the reference of ‘p’ non-judgmentally, i.e., without judging that p is identical with the reference of ‘p’. Frege’s conception of judgment impacts his conception of knowledge because the act of judging is that of producing knowledge. In a nutshell our act of judging and the knowledge we produce by it are epistemically grounded in our objectual knowledge of the True. If we take this point into account, we can develop a new reading of Frege’s claim that logic is the science of truth. -/- The suggested reading of Frege’s conception of truth and related notions can make a contribution to contemporary philosophical problems. First, Frege’s conception of judgment can cope with Peter Hanks’s recent criticisms of the Fregean picture of judgment in general. Secondly, his conception of assertion can explain the connection between truth and assertion in a novel way. Lastly, Frege’s conception of knowledge can be developed into a new theory of knowledge where objectual knowledge is more fundamental than propositional knowledge. (shrink)

Widespread interest in Frege's general philosophical writings is, relatively speaking, a fairly recent phenomenon. But it is only very recently that his philosophy of mathematics has begun to attract the attention it now enjoys. This interest has been elicited by the discovery of the remarkable mathematical properties of Frege's contextual definition of number and of the unique character of his proposals for a theory of the real numbers. This collection of essays addresses three main developments in recent work (...) on Frege's philosophy of mathematics: the emerging interest in the intellectual background to his logicism; the rediscovery of Frege's theorem; and the reevaluation of the mathematical content of The Basic Laws of Arithmetic. Each essay attempts a sympathetic, if not uncritical, reconstruction, evaluation, or extension of a facet of Frege's theory of arithmetic. Together they form an accessible and authoritative introduction to aspects of Frege's thought that have, until now, been largely missed by the philosophical community. (shrink)

In the proposed article by Maxim Isaenko "Ukrainian Christian tradition of state creation... "on the question of application A comparative methodological approach is presented in the analysis conceptual dispositions available in Ukrainian, Polish, and Russian types of state-building and organization of power institutions. Studying socio-legal models that are characteristic of three Slavic peoples, vectors of kinship and distance are outlined understanding of the phenomena of the state, power, law.

John Perry offers a rethinking of Frege's seminal contributions to philosophy of language, which had a dominant influence on the subject in the twentieth century. He argues that Frege's famous doctrine of indirect reference led philosophers on a detour, and he advocates a move to a new framework for understanding reference.

This paper argues that a particular point raised by Schröder – that Frege's logical notation fails to be modelled on arithmetical notation – is based on a misunderstanding, for the modelling was meant as conceptual, rather than notational.

Joan Weiner has argued that Frege’s definitions of numbers constitute linguistic stipulations that carry no ontological commitment: they don’t present numbers as pre-existing objects. This paper offers a critical discussion of this view, showing that it is vitiated by serious exegetical errors and that it saddles Frege’s project with insuperable substantive difficulties. It is first demonstrated that Weiner misrepresents the Fregean notions of so-called Foundations-content, and of sense, reference, and truth. The discussion then focuses on the role of definitions in (...) Frege’s work, demonstrating that they cannot be understood as mere linguistic stipulations, since they have an ontological aim. The paper concludes with stressing both the epistemological and the ontological aspects of Frege’s project, and their crucial interdependence. (shrink)

In the paper, I discuss a possibility of defending the Direct Reference theory from its most dangerous threaten which is the notorious Frege's puzzle. I discuss two possible ways of doing that. First is based on King's theory of propositions as facts. I show that tools provided by King's theory are not enough to solve the puzzle. More promising is a method supported by new Soames's theory of propositions as cognitive event-types. I try to show that this framework allows (...) us to develop a satisfying solution of the puzzle, which focuses​ on the notion of the cognitive value of the sentence. (shrink)

Frege's theory of indirect contexts and the shift of sense and reference in these contexts has puzzled many. What can the hierarchy of indirect senses, doubly indirect senses, and so on, be? Donald Davidson gave a well-known 'unlearnability' argument against Frege's theory. The present paper argues that the key to Frege's theory lies in the fact that whenever a reference is specified (even though many senses determine a single reference), it is specified in a particular way, so (...) that giving a reference implies giving a sense; and that one must be 'acquainted' with the sense. It is argued that an indirect sense must be 'immediately revelatory' of its reference. General principles for Frege's doctrine of sense and reference are sated, for both direct and indirect quotation, to be understood iteratively. I also discuss Frege's doctrine of tensed and first person statements in the light of my analysis. The views of various other authors are examined. The conclusion is to ascribe to Frege an implicit doctrine of acquaintance similar to that of Russell. (shrink)

I show that Frege's statement (In the Epilogue to his Grundgesetze der Arithmetic v. II) of a way to avoid Russell's paradox is defective, in that he presents two different methods as if they were one. One of these "ways out" is notably more plausible than the other, and is almost surely what Frege really intended. The well-known arguments of Lesniewski, Geach, and Quine that Frege's revision of his system is inadequate to avoid paradox are not affected by (...) the ambiguity of Frede's statement. But a rectnt argument by Linsky and Schumm (Analysis 82 (1971-72), 5-7), intended as a very simple derivation of a contradiction within Frege's revised system, is valid only for the less plausible of the two versions of Frege's way out, and thus is not an effective attack on the revision that Frege intended to make. (shrink)

Bernard Bolzano , one of the leading figures of the Bohemian Enlightenment, made important contributions both to mathematics and philosophy which were virtually unknown in his lifetime and are still largely unacknowledged today. As a mathematician, he was a pioneer in the clarification and rigorization of mathematical analysis; as a philosopher, he may be considered a forerunner of the analytic movement later to emerge with Frege and Russell.Rusnock's account of Bolzano's work is laid out in five chapters and two appendices. (...) The introductory first chapter consists of an overview of Bolzano's philosophy and his account of scientific theories. For Bolzano, the importance of such theories—as in mathematics—is their formal structure. Unlike his philosophical predecessors, Bolzano held that the goal of scientific presentation is not to maximize certainty, but rather to set out the objective order of truth.Chapter 2 is an analysis of Bolzano's early work, Contributions to a Better Founded Presentation of Mathematics, in which a number of his characteristic doctrines concerning mathematics are adumbrated. In sharp contradistinction to Kant, Bolzano thought that the methodology of mathematics is logic, and that mathematics should be founded independently of epistemology. In the Contributions Bolzano formulates a ‘thoroughgoing refutation of Kant's account of mathematical knowledge’, repudiating in particular …. (shrink)

Frege's definition of the real numbers, as envisaged in the second volume of Grundgesetze der Arithmetik, is fatally flawed by the inconsistency of Frege's ill-fated Basic Law V. We restate Frege's definition in a consistent logical framework and investigate whether it can provide a logical foundation of real analysis. Our conclusion will deem it doubtful that such a foundation along the lines of Frege's own indications is possible at all.

Franciscus Van den Enden is commonly considered as the man who taught Latin to B. de Spinoza. It is unknown if he actually taught him something else, but we do know he used a pedagogy of his own and made the young philosopher aware of the importance of pedagogical issues. The present article helps to document their relationship from a historical and theoretical perspective, by clarifying Van den Enden’s ideas on a most debated subject: the use of honorary titles to (...) distinguish pupils in the classroom. In particular, it shows how the rejection by Van den Enden of titles commonly used in Jesuits schools finds echoes in Spinoza’s philosophy. At the same time, the article argues that through their common participation in theatrical plays, Van den Enden and Spinoza shared a pedagogical experience that helped to overcome the problems linked to the introduction of a hierarchy, not theoretically, but in practice. (shrink)

This volume contains all of Frege's extant unpublished writings on philosophy and logic other than his correspondence, written at various stages of his career.

Examines Frege's theory of judgement, according to which a judgement is, paradigmatically, the assertion that a particular object falls under a given concept. Throughout the book the aim is to both state Frege's views clearly and concisely, and to defend, modify or reject these where appropriate.

Frege’s puzzling remarks on the beginning of On Sense and Reference challenge us to explain how true identity sentences of the form a = a can differ in cognitive value from sentences of the form a = b when they are made true by the same object’s self-identity. Some philosophers (e.g. Almog, Glezakos and Paganini) suggest that the puzzle cannot be set up in the context of natural languages since natural sentences, unlike those of regimented formal ones, do not wear (...) their logical properties on their sleeves. In this paper we argue that, on the contrary, there exists a notion of coordination between names which is apt to track the relevant logical properties of natural sentences and therefore to set up the puzzle in natural languages. Frege’s puzzle is here to stay. (shrink)

In this paper we reach back to an earlier generation of discussions about both linguistic meaning and moral language to answer the still-current question as to whether and in what way some special non-descriptive feature comprises part of the semantics of identifiably ethical terms. Taking off from the failure of familiar meta-ethical theories, restricted as they are to the Fregean categories of Sense and Force (whether singly or in combination), we propose that one particular variety belonging to Frege’s humble semantic (...) category of Farbung –– what Dummett calls Tone –– holds the key. Specifically, the kinds of expressions that Dummett dubs “expressives”, when properly understood as representing a speaker’s sentiment, solve the mystery not only of moral discourse, but of evaluative language, broadly construed. On this basis we account for moral language’s special relation to action motivation in ways that avoid Moore’s paradox and honor, in unasserted contexts, what Geach calls ‘the Frege point’. Commitments to the public and social character of natural language are also respected. (shrink)

According to Peter Aczel, the inconsistency of Frege’s system in Grundgesetze is due, not to the introduction of sets, as is usually thought, but to the introduction of the Horizontal. His argument is that the principles governing sets are intuitively correct and therefore consistent, while the scheme introducing the Horizontal amounts to an internal definition of truth conflicting with Tarski’s classic result on the undefinability of truth in the object language. The aim of this paper is to show that the (...) Horizontal is innocent: Aczel’s diagnosis is based on a mistaken view of the structure underlying Frege’s ideal language. (shrink)

(Translation of Frege's "Le nombre entier", 1895).

In lieu of an abstract, here is a brief excerpt of the content:358 BOOK REVIEWS ing and his arguments seem more tentative and relativistic than those offered in his previously published works (Truth and Other Enigmas, 1978; The Interpretation of Frege's Phuosophy, 1981, etc.). Yet he uses his mastery of powerful logical techniques in order to support the chosen positions. This fact might give great satisfaction to a logician, hut the metaphysician may he somewhat disappointed by the meager results (...) attained, though Dummett himself modestly restricts his goals to those of forming only " a base camp for an assault on the metaphysical peaks...". One may also wonder whether Dummett remained faithful to his methodological requirement of the priority of meaningtheory with regard to logic and metaphysics. Doesn't Dummett's acceptance of intuitionistic logic (with its rejection of the principle of bivalence) dictate his preference for a certain meaning-theory, and not the other way around? To distill and extract metaphysical beliefs and insights which are contained (perhaps tacitly) in the working of our language is undoubtedly a legitimate goal of any philosophical enterprise. But our ambitions go beyond this goal: we are reaching after reality itself, not just after our opinions about reality and their semantical elucidation. In this respect Dummett's programmatic conception of metaphysics may face serious difficulties in attempts to climb the ahovementioned metaphysical peaks. On the other hand, is any metaphysical program exempt from such difficulties? The hook is beautifully printed; Harvard University Press has done an excellent job! The Index, which combines names and subjects, is a hit too economical, omitting certain references (for example, important remarks on God's omniscience on pp. 75-76). AUGUSTIN RISKA Saint John's University New York, New York Ethical Practice in Clinical Medicine. By WILLIAM J. ELLOS. New York: Routledge, 1990. Pp. 190. Medical ethics is an integral part of the science and art of medicine. Rather than being a set of norms or regulations added from external sources, such as the legal norms regulating the medicare program, the norms and maxims of medical ethics are integral elements of medicine arising from the relationship between physician and patient. In one way or another, most philosophers of ethics and medicine would agree with the foregoing statements. But once the role of ethics in medicine has BOOK REVIEWS 359 been established, a serious difficulty arises: What method should he used to define and delineate ethical norms for particular cases? More to the point, how should one go about solving problems in medical ethics? Father William Ellos, S.J., is concerned with resolving the difficulty of method in medical ethics. He seeks to develop and explain a method in medical ethics that will be both clinical and pragmatic. Joining with other specialists in the field, he opts for a virtue-centered approach to solving issues in medical ethics, as opposed to a rulecentered duty-based approach. While not rejecting the ethical method featuring the principles of autonomy, beneficence, and justice derived from W. D. Ross (an approach favored by so many contemporary scholars in the field of medical ethics), he does maintain that these principles are greatly overworked as well as simplistic. He proposes virtue-centered reasoning as a better method of ethical endeavor, especially attuned to the complexity and problematics of clinical ethics. In developing the notion of virtue·centered ethics, Ellos considers the contributions of the past and present thinkers to this method of ethical decision making. Hence, Plato, Aristotle, Thomas, the Scottish Enlightenment Philosophers, and American Pragmatists are the main sources of his reflections upon virtue ethics. Ellos finds a culmination of virtue ethics in the present-day tendency of many consultants in medical ethics to classify themselves as casuists, indicating that they are eclectic and pragmatic in their efforts to solve clinical cases. In the course of the historical and analytical sections of this work, Ellos demonstrates not only a wide acquaintance with classical and contemporary authors but also an ability to discern continuity of thought among these well.known philosophers and theologians. Especially significant is his recognition of the too often neglected contemporary authors Collen Clements and Roger Sider, whose accurate indictment of the principle of autonomy as interpreted by present-day medical ethicists restores the... (shrink)

So-called 'Frege cases' pose a challenge for anyone who would hope to treat the contents of beliefs (and similar mental states) as Russellian propositions: It is then impossible to explain people's behavior in Frege cases without invoking non-intentional features of their mental states, and doing that seems to undermine the intentionality of psychological explanation. In the present paper, I develop this sort of objection in what seems to me to be its strongest form, but then offer a response to it. (...) I grant that psychological explanation must invoke non-intentional features of mental states, but it is of crucial importance which such features must be referenced. -/- It emerges from a careful reading of Frege's own view that we need only invoke what I call 'formal' relations between mental states. I then claim that referencing such 'formal' relations within psychological explanation does not undermine its intentionality in the way that invoking, say, neurological features would. The central worry about this view is that either (a) 'formal' relations bring narrow content in through back door or (b) 'formal' relations end up doing all the explanatory work. Various forms of each worry are discussed. The crucial point, ultimately, is that the present strategy for responding to Frege cases is not available either to the 'psycho-Fregean', who would identify the content of a belief with its truth-value, nor even to someone who would identify the content of a belief with a set of possible worlds. It requires the sort of rich semantic structure that is distinctive of Russellian propositions. There is therefore no reason to suppose that the invocation of 'formal' relations threatens to deprive content of any work to do. (shrink)